Kvistin Fungicide (Carbendazim 50% WP) by Krishi Rasayan
The Trusted Systemic Solution for Complete Disease Control in Crops.
Kvistin is a broad-spectrum, systemic fungicide manufactured by Krishi Rasayan. Formulated as a 50% Wettable Powder (WP), it is designed to manage a wide variety of fungal diseases in field crops, fruits, and vegetables. Kvistin works from the inside out, absorbing into the plant to cure existing infections and prevent new ones, making it a staple choice for farmers fighting Rice Blast, Sheath Blight, and Powdery Mildew.
Why Choose This Product? Key Benefits
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Rapid Systemic Action: Absorbs quickly through roots and leaves, traveling upwards to protect new growth from the inside.
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Dual Defense Power: Acts as both a preventive shield (stops disease before it starts) and a curative treatment (stops active infections).
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Extended Protection: Remains active within the plant system, providing long-lasting control against recurrence.
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Rainfast Reliability: Once absorbed by the plant (usually within a few hours), it cannot be washed away by rain.
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Multi-Crop Versatility: Highly effective on Cereal crops (Rice, Wheat), Fruits (Apple, Grapes), and Vegetables.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Kvistin |
| Technical Name | Carbendazim 50% WP |
| IRAC MoA Code | Group 1 (Benzimidazoles) |
| Chemical Group | Benzimidazole Carbamate |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Moderately Toxic (Blue Triangle) |
How It Works: Mode of Action
Kvistin attacks the fungal pathogen at the cellular level to stop its growth and spread.
- Inhibits Cell Division: It targets the "tubulin" protein in fungi, preventing the formation of microtubules. This stops the fungus cells from dividing (mitosis), effectively killing the pathogen.
- Systemic Translocation: After application, it moves acropetally (upward) through the plant's xylem system. This ensures that even new leaves growing after the spray are protected.
- Eradicant Action: It penetrates plant tissues to eliminate fungal mycelium that has already entered the leaf, curing early-stage infections.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Rice (Paddy) | Blast, Sheath Blight, False Smut |
| Wheat & Maize | Loose Smut (Seed Treatment), Stem Rot |
| Apples & Grapes | Scab, Anthracnose, Powdery Mildew |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice (Paddy) | 200 - 250 g | 150 - 200 L | 1.5 - 2 g | 15-30 |
| Wheat (Seed Treat) | 2 g / kg seed | N/A | N/A | N/A |
| Grapes | 120 g | 200 L | 0.6 g | 15 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply preventively before disease symptoms appear, or immediately at the first sign of leaf spots or blast lesions.
- Mixing: Premix the required quantity of Kvistin with a small amount of water to make a slurry, then add to the main spray tank while stirring.
- Coverage: Ensure uniform coverage of the foliage. For soil-borne diseases (like Root Rot), drench the soil around the root zone thoroughly.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not use near fish ponds.
Frequently Asked Questions
1. Is Kvistin safe for Basmati Rice?
No. Do not use Kvistin on Basmati Rice intended for export. Strict residue limits (MRLs) in the EU and USA often lead to rejection of shipments treated with Carbendazim.
2. Can I mix Kvistin with other fungicides?
Yes, it is often mixed with Mancozeb (Contact Fungicide) to manage resistance and broaden the spectrum of control. (Check product CM-75 for a pre-mix option).
3. Does Kvistin cure Root Rot?
Yes, but only if applied as a seed treatment or soil drench. Foliar sprays will not move downward to the roots to cure root rot.
4. What is the rainfastness period?
Kvistin is generally rainfast within 2 to 4 hours after application, as it is absorbed into the plant system.
5. Can it be used on vegetables?
Yes, it is effective on Brinjal, Peas, and Cucurbits, but ensure you strictly follow the Pre-Harvest Interval (PHI) to avoid residue on the harvested vegetables.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.
